Driving mechanism for braiding machines



J. P. KING oct. 7, 1924. 1,510,480 A y DRIVING Manz-:Ism Fon' BRAIDINQ MACHINES original F11@ 'uga'rch 16, 1922 ulllllllmuI Patented @et 7, 1924.

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JOHN P. KiNG, or PROVIDENCE, RHODE rsLAND, Assisivon, BYDIRECT AND MESNE ASSIGNMENTS, To IDEAL BRAIDING MACHINE CQMZEANY,

RHODE ISLAND,

DRIVING MEGHANISM FOB IBRAIDING MACHINES.

Application filed lvlarch. 16, 1922, Serial No. 544,263. Renewed February 29,1924.

To all whom it may concern.'

Be it known thatI, JOHN P KING, a citizen of the United States, residing atl Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in DrivingMechanism for Braiding Machines, of which the followingv is a specification. f

This invention relates to driving mechanism for braiding machines and is an improvement on my co-pending applicationv Serial No. 397,238, filed July 19, 1920. 1

This invention has for its object to provide means in the driving mechanism whereby the machine may be started gradually to prevent undue shocks and jars to the mechanism, and stopped quickly to prevent the forming of imperfect work by continuing the braiding' action after the thread is broken, and to arrest the carrier requiring attention in a position most accessible to` the yattendant. for'piecing upl the thread lor forl doifing and replacing with a fresh bobbin.y

of construction, as Vwill be more fully described, and particularly appended claims.

In the accompanying drawings:v Figure 1 isa topview showing a portion of a machine with my improved stopping mechanism attachedV thereto= Figure 2 is asideelevation partly in section showing my improved lever-retaining latch and the means fortripping the same. Figure 3 isa sectional side elevation of the clutch and brake portion of the driving mechanism.

It is found in practice very desirable to provide a stop motion for high-speed braidpointed out in the ing machines in which the stopping mechanism may be tripped by a passing carrier having defective thread supply and to construct this mechanism so that it will'k be positive and yet delicate in its action to' withdraw the latch bolt and permit the op.- erating lever to moveand separate the clutch members and simultaneously applyv a friction brake to the carrier driving mechanism and to so nicely control the stopping of the carriers that they will move but a very short distance after the tripper has been engaged;l By this construction many advantages are obtained among others being first, that the carrier with ay defective supply is caused to stop in front of the attendant l to receive immediate attention and by stop-v ping quickly the thread of the exhausted cop is not drawn out sufiiciently to` unthread the carrier thus permitting this end to be tied to that of a fresh bobbin and so obviate the necessity. of threading up. Then again where the carrier is stopped -.quickly the braiding of the broken end into' the work is prevented, and the following is a detailed description of one means by which these advantages may be accomplished With reference to the drawings, 10 desig nates the' rac'eway-table of my improved braiding machine in which the raceways 11 are shown. A portion of one ofthe usualk 'latter-being provided vwitha tapering friction clutch face 18 adapted to be engaged by the opposite corresponding clutch mem,- ber 19 which latter is keyed at 20 to the shaft 14 anda spring 21 is positioned between the two clutch members to separate them when-released by the operating lever 22, which lever isi pivoted at- 23, and' its lowerl forked end 24 is' arranged to engage the under sid'e of theclutch memberv 19 u through the ball-bearing plates 25.

This lever 22 extends upwardly on an" angle and is provided near' its -upp`er end with an adjustable latch-engaging-,member and also with anoper-ating handle 27'.

In order to vcontrol the releasing-of this handle to permit the dsengaging `of the beveled as at 31tandthe under facey 35 of fil) the bolt-engaging mem-ber 26 is also-beveled whereby a forward swinging` motion of the lever 22 after having been tripped serves to force the bo-ltinwardly to permit the member 26 to snap past its end andbe engaged by the b olt to hold the lever in 0per-ativeV position.

In order to controlthe action of this latch bolt to withdraw it when the supply on the carrier is-defective, that is whenv the supply is exhausted or the thread brokenl permitting the bottomY weight l2-3 to drop, I havepr'ovidedfa three-arm lever 36 pivotally mounted onV the pin 37', one of the arms 38 extending intoproximity to one porti-on of the` raceway while another arm 39 extends into` proximity of another port-ion of the raceway while the third arm ll() extends forward and has a cross-bar at its end. r his bar is provided at its outer ends with-downwardly-extending pins el provided with rollers 42 to engage the transverse latch bolt It will-be noted that theeiids ofthe arms 38' and` 39- have upturned flanges all and 45, respectively.l which flanges areset on an angle to the-travel of the carrier wherebythe engaging edge of the bottom weight i3 will strike this flange a glancing` blow and by a wedgingactioii, force the lever to swing by an easy motion, and without the shockwhic-h ivouldbe dueto a direct engagement with a lever set at right angles to its travel. This-easy swinging movement of the lever is transmitted through thearm 4() tothe rollers Ll2 to engage the transverse pin 31` inthe latch to move the boltback-to releasethe lever 23 which thenunder actiono-f the spr-ing 2l', see Figure 3, separates theclutch parts tov release the carrier-driving mechanism. Ait the` saine time the lower clutch par-t-v dropsinto;` engagement withY the fixed-leather friction surface 46 thereby -prov-iding,v abrake against which this clutch part-19 is pressed by the spring 2l therebypromptly-arresting the actionof the braidi ing mechanism and. that without shock or jar'to the salme.

By-iny improvedV construction I have obtained a` number of important advantageswhich are essentialin high-speed braidingmachine particularly when producing cord for the manipulation of automobile tire casings oil other high grade or particular work z-First, the machine may be stopped at once and; without shock er ar tothe incohanism; second, when the stop motion is operated the clutch instantly ceasesvto drive, and a. brake is immediately and automatically appliedv tol arrest further travel of the cai riers and so prevents the braiding of defective work; third, by my improved mech aiiisin the carrier with a defective thread is itself arrested at the front of 'the machine where it is most accessible to the operator for piecing` up; or for replacing the exhausted bobbin with a fresh one.

By stopping-the machine at oncethe wasteV to the finished productY is reduced to a ininimum as in producing` braided material for very high class work, all the imperfections must be cut out andthe braidl pieced-upv and avery high speed and the loss by--over` running and theY consequent production of .imperfect work, is reduced to--the minimum.

rlhe foregoing;y description is directedsolely towards the construct-ion illustrated, but

lV desire it to be understood that-I reserve the privilege of4 resorting to all the mechanical y changes to which the device is susceptible, the invention being definedv andilimited only by the terms of the appended. claims.

lf claim:

l. In a braiding` machine the combination. with a raceway-table, of a friction clutch through which the drivingl of the carriers iiisaid raceway is. controlled, a lever for operating saidl clutch, an arm pivotally mounted adjacent the i'aoeway-in said table to be engaged by acarrier traveling therein having a defective thread supply, and a latch bolt positioned to retain said lever in operative positionv and adaptedtobe withdraw-n by a movement of said arm to release said lever and-permit saidclutch to-operate.

2'. lira-braiding` mac-hinethe combination with a raceway-table, of a friction clutch through which the drivingof the carriers iii/said raceway is controlled, a7 lever for operating said clutch, an arm. pivotally mounted adjacent-theraceway insaid table to Vbeengaged by-acarriert-raveling therein having a defective thread supply, aisprinL pressed latch-bolt positioned to retain said lever in operative position, and means whereby a swingingmovement-of saidarm will withdraw said bolt to release the-.lever andl permit. the clutch to operate.

3. Iii-a braiding machinethe:combination with a racewaytable, of a friction clutch through Y which the drivingof` theY carriers in said raceways.. is. controlled, a lever through which the clutch parts are retained in engaging position, a spring for separating the clutch parts when released, an arm pivotally mounted adjacent thev raceway on said table to be engaged by a traveling carrier having a defective thread supply, a latch bolt, means in said lever for engaging said latch to hold the clutch parts in engagement, and means for adjusting said latch engaging means to control the pressure of the driving engagement of the clutch members.

4L. In a braiding machine the combination with a raceway-table, of a friction clutch through which the driving of the carriers in said raceways is controlled, a lever through which the clutch parts are retained in engaging position, a spring for separating the clutch parts when released, an arm pivotally mounted adjacent the raceway on said table to be engaged by a traveling carrier having a defective thread supply, a spring pressed latch bolt positioned to retain said lever in operative position, and means whereby a swinging movement of said arm will withdraw said bolt to release the lever and permit the disengagement of the clutch parts, and means for automatically applying a brake to the mechanism when the clutch is released. l

5. In a braiding machine, the combination with a raceway table, of a friction clutch through which the driving of the carriers in said raceway is controlled, a lever for operating said clutch, an arm pivotally mounted adjacent the raceway in said table to be engaged by a carrier traveling therein having a defective thread supply, a spring pressed latch bolt set to retain said lever in operative position, a transverse engaging pin in said bolt, a transverse bar adjacent the end of said arm, and means on said arm for engaging said bolt pin whereby a swinging movement orf said arm will operate through said pin to Withdraw the bolt to release the lever and permit the clutch to opcrate.

6. In a braiding machine the combination with a raceway-table and carrier drivers, of a friction clutch through which power is transmitted to said drivers,'a clutch operating lever, a spring-pressed latch bolt, a latch engaging member on said lever adapted to` be adjusted to determine the degree of engaging pressure of the clutch member, and means whereby a passing carrier may be caused to trip said latch and release said clutchA to stop the machine.

7. In a braiding machine the combination with a carrier raceway-table and carrier drivers, of. a clutch including a spring operated driving part through which power is transmitted to said drivers, an operating lever for moving said clutch parts into effective driving engagement, arms pivotally mounted adjacent the raceway in said table to be engaged by a carrier in the raceway having a defective supply of thread, a latch positioned to engage a member on said lever tomaintain said lever in operative position and said latch being adapted to be operated by said arms to disengage said lever and permit said clutch parts to separate, and means for adjusting said latchv engaging member.

8. In a braiding machine the combination 'with a carrier raceway-table and carrier drivers, of a clutch including a spring operated driving part through which power is transmitted to said drivers, an operating lever for moving said clutch part into effective driving engagement, arms pivotally mounted adjacent the raceway in said table to be engaged by a wedging `action by a carrier in the raceway having a defective supply of thread, a sliding bolt positioned to maintain said lever in operative positifm and connected with said arms to be affected by the movement of the latter for disengaging said lever and permitting said clutch parts to separate, and a friction :surface against which one of said clutch parts is thrust byV the separating spring thereof for arresting the movement of said carrier drivers.

In testimony whereof I a'liiX my signature.

JOHN I. KING. 

